Questions on UI for WPF Forum

2 answers

481 views

I have a GridView in a WPF page. I've got the "Click here to add new item" row to appear in the grid, but when I click anywhere in the row, nothing happens. I cannot get the new row to appear. I've got "ShowInsertRow" and "CanUserInsertRow" both set to True. Am I missing something? Is there something else I have to do to make the new line appear?

Here's my XAML for the control, Thanks for your help.:

<telerik:RadGridView Name="rgvParameters" Grid.Column="1" HorizontalAlignment="Left" Margin="134,476,0,0" VerticalAlignment="Top" Height="171" Width="496" ItemsSource="{Binding}" IsFilteringAllowed="False" ShowGroupPanel="False" AutoGenerateColumns="False" SelectionUnit="Cell" ShowInsertRow="True" ActionOnLostFocus="None" CanUserInsertRows="True" CanUserReorderColumns="False" CanUserSortGroups="False" CanUserDeleteRows="False" SelectionChanged="rgvParameters_SelectionChanged">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Name="rgcParameterID" DataMemberBinding="{Binding [ParameterID]}" Width="0" MaxWidth="0" MinWidth="0" />

<telerik:GridViewDataColumn Name="rgcApplicationID" DataMemberBinding="{Binding [ApplicationID]}" Width="0" MaxWidth="0" MinWidth="0" />
<telerik:GridViewDataColumn Name="rgcParameterName" DataMemberBinding="{Binding [ParameterName]}"
Header="Key" />
<telerik:GridViewDataColumn Name="rgcParameterValue" DataMemberBinding="{Binding [ParameterValue]}"
Header="Value" />
</telerik:RadGridView.Columns>
</telerik:RadGridView>

Edit: One thing I just noticed. If I bring up the page and immediately click the new row, the new row line does appear. If I populate the grid with current data from the database with this line of code, the insert new row command no longer works:

rgvParameters.ItemsSource = businessRules.GetParameters(dsApp.Tables[0].Rows[0]["ApplicationID"].ToString());

Why does setting the ItemSource value invalidate the user's abiity to add a new record to the grid?

GridView

answered on 12 Feb 2019

0 answers

153 views

TabControl which tab has the validation error

Hello,

Im using RadTabControl for my project and everything is working fine with validations

Im using the same viewmodel for all tabs

and I want to highlight the tab that has errors

Is it possible ?

thanks alot

TabControl

asked on 12 Feb 2019

1 answer

45 views

Search option for fields in RadPivotFieldList

Hi Team,

Is it possible to search fields in the RadPivotFieldList and filter the same? We have many fields that are populated in the RadPivotFieldList and it is difficult to navigate to a particular field in the list.

Regards,

Swapnil

PivotGrid

answered on 12 Feb 2019

3 answers

258 views

Error opening this pdf

Hello,

I can't open this pdf with PdfDocumentSource

>> https:// ufile.io/ rkqtk

Here the full error :

System.IndexOutOfRangeException: Index was outside the bounds of the array.<br

>   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfReader.Parsers.PdfParser.TryReadIndirectObject(Int64 offset, Boolean isEncrypted, IndirectObjectOld& indirectObject)<

br

>   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfReader.Parsers.PdfParser.ReadCrossReferenceStream(Int64 offset, CrossReferenceStreamOld& stream, Byte[]& data)<

br

>   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfReader.Parsers.PdfParser.InitTrailerAndCrossReferenceStream(Int64 offset)<

br

>   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfReader.Parsers.PdfParser.ReadCrossReferenceCollection(Int64 offset)<

br

>   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfReader.Parsers.PdfParser.InitializeCrossReferences()<

br

>   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfReader.PdfContentManager..ctor(PdfFormatProvider provider, Stream stream)<

br> at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider.Import()<br

>   at Telerik.Windows.Documents.Fixed.PdfDocumentSource.CreateDocumentFromStreamOverride(Stream stream, FormatProviderSettings settings)<

br

>   at Telerik.Windows.Documents.Fixed.FixedDocumentStreamSource.CreateDocumentFromStream(Stream stream, FormatProviderSettings settings)

Thanks for your help :)

PDFViewer

answered on 11 Feb 2019

1 answer

223 views

Maintain cell id in spreadsheet

I was wondering if I would be able to use the spreadsheet to satisfy the following requirements:
1. Data should be shown to the user in a 2D control, with a finite amount of columns and rows
2. The user should be able to add columns or rows to the control to the beginning, middle of the sheet
3. The user should be able to copy data from the control to excel
4. The user should be able to copy data from excel to the control.
5. The user should be able to mark any row or column as a "header" (Just allows for different formatting and input)
6. The user should be able to save this data from the control to a database and retrieve it at a later date, where each cell will be given a unique id.
7. The user should be able to apply steps 1-6 without overwriting the cell id for any existing cell.

From what I've seen the RadSpreadsheet does everything perfectly other than keeping track of properties on the cell, such as a unique id. I see that I can programmatically set the data with a class that implements ICellValue, but as soon as the user starts typing in the cell that data is overridden to become another type of CellValue, such as TextCellValue or NumericCellValue. Is there a way to force each cell to map to a custom ICellValue?

I see there are events for the WorkbookChanging, WorkbookChanged, and CommandExecuting but they don't really tell you what is changing to override the action. Perhaps using the history to keep track of what data was mutated can help to go back and set Id's on the cells which need an Id.

The reason why the Id is so important is because, for good or bad, once persisted other tables can reference that cell ID and make calculations based off the value of the cell. So if I modify the table to add new rows or columns to the table, or modify the contents of the cell, the ids need to be tracked.

Spreadsheet

answered on 11 Feb 2019

5 answers

907 views

Problem With grid splitter

I have problem with RadGridView and grid splitter. it happens when the columns are more than the visible part of RadGridView and you try to move grid splitter doesn't move here is example code: StyleManager.ApplicationTheme = new FluentTheme();

<telerik:RadRibbonWindow x:Class="TelerikWpfApp1.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:prism="http://prismlibrary.com/"

Title="MainWindow" Height="350" Width="525" WindowState="Maximized"

prism:ViewModelLocator.AutoWireViewModel="True">

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition/>

<ColumnDefinition Width="Auto"/>

<ColumnDefinition/>

</Grid.ColumnDefinitions>

<telerik:RadGridView ItemsSource="{Binding Models}" AlternationCount="2"

AutoGenerateColumns="False"

IsReadOnly="True"

Grid.Column="0"

IsFilteringAllowed="True"

FilteringMode="Popup"

BorderThickness="1">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test1}" Header="Test 1" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test2}" Header="Test 2" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test2}" Header="Test 3" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test4}" Header="Test 4" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test5}" Header="Test 5" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test6}" Header="Test 6" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test7}" Header="Test 7" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test8}" Header="Test 8" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test9}" Header="Test 9" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test10}" Header="Test 10" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test11}" Header="Test 11" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test12}" Header="Test 12" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test13}" Header="Test 13" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test14}" Header="Test 14" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test15}" Header="Test 15" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test16}" Header="Test 16" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test17}" Header="Test 17" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test18}" Header="Test 18" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test19}" Header="Test 19" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test20}" Header="Test 20" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test21}" Header="Test 21" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test22}" Header="Test 22" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test23}" Header="Test 23" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test24}" Header="Test 24" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test25}" Header="Test 25" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Test26}" Header="Test 26" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

<GridSplitter Grid.Column="1" Width="10" ResizeBehavior="PreviousAndNext" ResizeDirection="Columns"/>

<WebBrowser Grid.Column="2"/>

</Grid>

</telerik:RadRibbonWindow>

GridView

answered on 11 Feb 2019

5 answers

274 views

Zooming out not satisfactory

When I AutoFit() my diagram, I want all nodes to be visible on screen. However, this is impossible when the diagram is too large. The zooming restriction gets in the way.

I want to be able to zoom out until all nodes are visible on screen, no matter the size of the diagram! It doesn't matter if the rendering of the nodes suffers. In a complex diagram, I must be able to see all nodes to get an overview of its structure. This is absolutely crucial for our application so please provide us with a patch/workaround! Thanks.

I really don't understand why the zooming works this way. I get the same result if I set the Zoom to 0.1 or 0.05...

Diagram

answered on 11 Feb 2019

13 answers

2.8K+ views

Scroll to row when programmatically setting selected item

Hello,

I'm trying to implement a "find" feature where the user can enter a value in a textbox (outside of the grid) then click a button to find the row that matches the search criteria. I'm able to programmatically set the selectitem on the grid successfully, but if the item is not in the current scroll region the user has to scroll down to to the item. Is there a way to ensure that the selected item is always in view? Also, I should mention that we are using MVVM, so there is no code behind.

Thanks.

GridView

answered on 11 Feb 2019

3 answers

181 views

How to make WeekView width always the parent Element width if time is displayed vertically?

Hello,

I like to have the width of the WeekView always equal to the width of the current parrent. But as soon as I have more Appointments ScheduleView is displaying a horizontal scrollbar and I have to scroll horizontally to see the last days of the week. (See attached Screens)

Is there an option to shrink the Appointments in width so I see always the complete week without scrolling horizontally?

Kind regards,

Markus

ScheduleView

answered on 11 Feb 2019

3 answers

539 views

Labels are not visible in BarSeries when DataTemplate for lables is defined.

Hello. I use a DataTemplate for labels in BarSeries. Please see XAML below:

<telerik:RadCartesianChart Grid.Row="0" Grid.Column="0" Visibility="{Binding IsAbsoluteBarChartVisible}">

<telerik:RadCartesianChart.Annotations>

<telerik:CartesianGridLineAnnotation Axis="{Binding ElementName=verticalAxis}" Value="{Binding AnnotationValue}" Label="{Binding AnnotationLabel}" Stroke="Red"

StrokeThickness="2" DashArray="8 2" Visibility="{Binding IsAnnotationVisible}">

<telerik:CartesianGridLineAnnotation.LabelDefinition>

<telerik:ChartAnnotationLabelDefinition Location="Inside" VerticalAlignment="Bottom" HorizontalAlignment="Center">

<telerik:ChartAnnotationLabelDefinition.DefaultVisualStyle>

<Style TargetType="TextBlock">

<Setter Property="FontSize" Value="14"/>

<Setter Property="FontWeight" Value="DemiBold"/>

<Setter Property="Foreground" Value="Red" />

</Style>

</telerik:ChartAnnotationLabelDefinition.DefaultVisualStyle>

</telerik:ChartAnnotationLabelDefinition>

</telerik:CartesianGridLineAnnotation.LabelDefinition>

</telerik:CartesianGridLineAnnotation>

</telerik:RadCartesianChart.Annotations>

<telerik:RadCartesianChart.HorizontalAxis>

<telerik:CategoricalAxis/>

</telerik:RadCartesianChart.HorizontalAxis>

<telerik:RadCartesianChart.VerticalAxis>

<telerik:LinearAxis x:Name="verticalAxis" Title="{Binding Title_Y}" Minimum="{Binding AbsoluteMinimum_Y}" Maximum="{Binding AbsoluteMaximum_Y}" MajorStep="{Binding AbsoluteStep_Y}"/>

</telerik:RadCartesianChart.VerticalAxis>

<telerik:RadCartesianChart.Series>